HI THERE I HAVE A HALSTEAD ACE BOILER WHICH IS/WAS NOT FIRING UP ON WATER OR HEATING. THE WIRING IS SOUND AND IT HAS HAD TWO NEW BOARDS BUT STILL NOTHING. AS A LAST RESORT I INCREASED THE PRESSURE TO 3 BAR INCASE THE GUAGE WAS FAULTY BUT NO RESPONSE. HOWEVER WHEN I RELEASED SOME PRESSURE VIA THE PRE...
